Recording epileptic activity with MEG in a light-weight magnetic shield.
Ten patients with focal epilepsy were studied with magnetoencephalography (MEG) to determine if a new light-weight magnetically shielded room (lMSR) provides sufficient attenuation of magnetic interference to detect and localize the magnetic correlates of epileptic activity. Interictal MEG epileptic events co-localizing with the presumed location of the epileptogenic zone were found in all patients. MEG measurements performed in the lMSR provide an adequate signal-to-noise ratio for non-invasive localization of epileptic foci.
De Tiège
Xavier
X
Laboratoire de Cartographie Fonctionnelle du Cerveau, ULB-Hôpital Erasme, Brussels, Belgium. xdetiege@ulb.ac.be
Op de Beeck
Marc
M
Funke
Michael
M
Legros
Benjamin
B
Parkkonen
Lauri
L
Goldman
Serge
S
Van Bogaert
Patrick
P
D000293:Adolescent; D000328:Adult; D002648:Child; D004827:Epilepsy / Q000175:diagnosis / Q000503:physiopathology* / Q000601:surgery; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008279:Magnetic Resonance Imaging; D015225:Magnetoencephalography / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care; D011827:Radiation; D011835:Radiation Protection; D055815:Young Adult